This walkthrough was originally written for the Japanese version of Oogie's Revenge back in 2004,
but it works just fine with the American and European versions too, with one exception.
In the Japanese one you cannot run in battles, you can only walk and jump.
So when it says "keep jumping/dodging around", simply running might be much easier in the other two.
When I refer to something as "hard", that means it's hard in the Japanese version, and probably easier in the others.
Some items or other things might have slightly different names as well.
Lastly, this was written for the PS2 version, so on the Xbox you will have to use different buttons.

If you just want to know how to finish a certain chapter, you should probably just read the walkthrough for that one.
However, these chapter walkthroughs presume that you have read the first two tutorials,
at least because they might answer lots of why's about strategic stuff,
and because some terms are only explained there.

The game has several secret places, called Hidden Places. Since these are area-based, and not chapter-based,
they are only included in the chapter walkthroughs when you need to get to one of them, or for tips.
For a full list of them, check the Maps Section.

Storywise parts are written in italic letters.
Things you have to do are listed with ♣s.